COM3 Connector (2.00mm Pin-Header) : COM3
Pin #
Assignment
Pin #
Assignment
1
DCD (Data Carrier Detect)
2
RXD (Receive Data)
3
TXD (Transmit Data)
4
-DTR (Data Terminal
Ready)
5
Ground
6
-DSR (Data Set Ready)
7
-RTS (Request to Send)
8
-CTS (Clear to Send)
9
RI (Ring Indicator)
10
No Connect
y
Figure:
C O M 3
1
COM4 Connector (2.00mm Pin-Header) : COM4
Pin #
Assignment
Pin #
Assignment
1
DCD (Data Carrier Detect)
2
RXD (Receive Data)
3
TXD (Transmit Data)
4
-DTR (Data Terminal
Ready)
5
Ground
6
-DSR (Data Set Ready)
7
-RTS (Request to Send)
8
-CTS (Clear to Send)
9
RI (Ring Indicator)
10
No Connect
y
Figure:
1
C O M 4
IR Connector (2.00mm Pin-Header) : IR1
Pin#
Assignment
1
Vcc+5V
2
No Connect
3
IRTx
4
GND
5
IRTx
y
Figure:
1
IR 1
15” Panel PC User’s Manual
P39
CPU Internal Cache/External Cache:
These two categories speed up memory access. However, it depends on
CPU/chipset design.
Enabled---Enable cache
Disabled---Disable cache
CPU L2 Cache ECC Checking:
This item allows you to enable/disable CPU L2 Cache ECC checking.
The choice: Enabled, Disabled.
Quick Power On Self Test:
This category speeds up Power On Self Test (POST) after you power up the
computer. If it is set to Enable, BIOS will shorten or skip some check items
during POST.
Enabled---Enable quick POST
Disabled--- Normal POST
First/Second/Third/Other Boot Device:
The BIOS attempts to load the operating system from the devices in the
sequence selected in these items.
The Choice: Floppy, LS/ZIP, HDD, SCSI, CDROM and Disabled.
Boot Up NumLock Status:
Select power on state for NumLock.
The choice: On, Off
Gate A20 Option:
Select if chipset or keyboard controller should control GateA20.
Normal---A pin in the keyboard controller controls GateA20
Fast---Lets chipset control GateA20
P18
15” Panel PC User’s Manual